*{margin:0;padding:0;}	
body { font-size: 13px; line-height: 130%; padding: 60px }
#panel { width: 300px; border: 1px solid #0050D0 }
.head { padding: 5px; background: #96E555; cursor: pointer }
.content { padding: 10px; text-indent: 2em; border-top: 1px solid #0050D0;display:block;display:none; }